heat The Butter In A Pan, Fry The Onions, Garlic Until Gets Soft. Add Flour, Continue Cooking For Another 2 Minutes.
Add Tomatoes Paste And Tomatoes Puree And Cook It For Another 5 Minutes. Add Stock, Bring To Boil And Simmer It For 2 Hours. Adjust The Seasonings. Pour Through A Jelly Bag Or Scalded Cloth, Return To The Path And Simmer For Another 45 To 60 Minutes. Garnished With Bread Croutons And Chopped Parsley.